Otto Bock 17AD100 Nexgear Tango Technical Information page 21

Procedure
Loosen the spring bolt and remove the spring dummy
from the spring holder.
Remove the washer.
Unscrew the spring holder from the support element.
INFORMATION: The stop pin is provided with a
thread lock and is therefore difficult to turn during
adjustment. Avoid frequent adjustment of the stop
pin to prevent damage to the thread lock. Optional:
Use the 17AD100A=MA* mounting adapter as a
lever extension of the Torx wrench.
Pull the spring plunger with the bearing sleeve and stop
pin out of the support element.
17AD100 21